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Finding the Fourth Proportional to 293,612.80, 440,433.60 and 153,644.80

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Solution

The fourth proportional to 293,612.80, 440,433.60 and 153,644.80 is: 230,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,612.80 : 440,433.60 = 153,644.80 : x
  2. Step 2: Convert to fraction form
    293,612.80/440,433.60 = 153,644.80/x
  3. Step 3: Cross multiply
    293,612.80x = 440,433.60 × 153,644.80
  4. Step 4: Simplify right side
    293,612.80x = 67,670,332,385.28
  5. Step 5: Solve for x
    x = 67,670,332,385.28/293,612.80
  6. Step 6: Final answer
    x = 230,474.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.